
Microbot
Rishabh416/microbot
My first fully custom project inspired by the microbots from the movie Big Hero 6. My goal is to get into swarm robotics and I believe this is a HUGE leap in that direction, but a good moment to learn.

My first fully custom project inspired by the microbots from the movie Big Hero 6. My goal is to get into swarm robotics and I believe this is a HUGE leap in that direction, but a good moment to learn.
MicroBot is an open-source printed circuit board by Rishabh416, from the Rishabh416/microbot repository on GitHub. It is a 2-layer board of 34.8 × 14.8 mm with 68 parts on 76 nets, routed with 381 tracks and 24 vias.
It is built around the NRF24L01P-R, DRV8837CDSG and LSM6DS3, with the XC6220B331MR, 1N5819WS and 2450AT18A0100001E among its other parts. Its parts include 22 capacitors, 14 resistors, 8 ICs, 7 connectors and 4 diodes. It belongs with the STM32 boards of this library.
My first fully custom project inspired by the microbots from the movie Big Hero 6. My goal is to get into swarm robotics and I believe this is a HUGE leap in that direction, but a good moment to learn. I made this project to learn about swarm robotics and the potential application in environmental applications such as in deserts.

| Part Number | JLC Part Number | Description | Manufacturer | Package | URL |
|---|---|---|---|---|---|
| STM32F103C8T6 | C8734 | STM32 MCU | STMicroelectronics | LQFP-48(7x7) | Link |
| N/A | N/A | Electromagnet | |||
| N/A | Servo Motor | ||||
| N/A | DC Motor | ||||
| ICM-42688-P(TOKMAS) | C54308212 | IMU | Tokmas | LGA-14(2.5x3) | Link |
| NRF24L01P-R | C8791 | NRF24 | Nordic Semicon | QFN-20-EP(4x4) | Link |
| KH-204065-DZ | C530676 | Pogo Male | Shenzhen Kinghelm Elec | SMD, D=2mm | Link |
| BWCD-L4.5W2.0H2.3 | C2826546 | Pogo Female | BAT WIRELESS | SMD, D=2mm | Link |
| N/A | LiPo Battery | ||||
| MCP73831-2ATI/MC | C635036 | BMS | Microchip Tech | DFN-8-EP(2x3) | Link |
| XC6220B331MR-G | C86534 | Voltage Regulator | Torex Semicon | SOT-25 | Link |
| DRV8837CDSGR | C191000 | Motor Driver | Texas Instruments | WSON-8-EP(2x2) | Link |
| 2450AT18A100E | C89334 | Antenna | Johanson Dielectrics | 1206 | Link |
| 16M 12PF 10PPM | C2975359 | 16MHz Crystal | SST | HC-49S-SMD-2P-Mini | Link |
| SSM3J338R,LF | C146352 | MOSFET | TOSHIBA | SOT-23F | Link |
| Capacitors | 0603 | ||||
| HVRTB-3433EPX | C5246356 | Green LED | HONGLITRONIC | SMD-6P, 3.4x3.3mm | Link |
| Diodes | D_SOD-323 | ||||
| TJ-S0704EX4T5ALC2R-A5 | C48689442 | Red LED | TOGIALED | 0201 | Link |
| 918-118A2021Y40002 | C399939 | USB C | Jing Extension | SMD | Link |
| B2B-PH-K-S-GW | C5251182 | Conn_01x02 | JST | 插件, P=2mm | Link |
| 2.54-1*3P针 | C49257 | Conn_01x03_Pin | BOOMELE | 插件, P=2.54mm | Link |
| 2.54-1*4 | C5116483 | Conn_01x04_Pin | ZHOURI | 插件, P=2.54mm | Link |
| Inductors | 0603 | ||||
| Resistors | 0603 |
| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100n | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C5, C6, C7, C8 |
| 6 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R5, R6, R10, R11 |
| 4 | Conn_01x03_Pin | Connector:FanPinHeader_1x03_P2.54mm_Vertical | J3, J4, J5, J6 |
| 3 | DRV8837C | Package_SON:WSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm | U4, U5, U6 |
| 3 | Motor_DC | TestPoint:TestPoint_2Pads_Pitch2.54mm_Drill0.8mm | M1, M2, M3 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric | C18, C21 |
| 2 | 1M | Resistor_SMD:R_0603_1608Metric | R4, R9 |
| 2 | 1N5819WS | Diode_SMD:D_SOD-323 | D2, D3 |
| 2 | 1n | Capacitor_SMD:C_0603_1608Metric | C10, C19 |
| 2 | 22p | Capacitor_SMD:C_0603_1608Metric | C12, C13 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R7, R8 |
| 2 | FemalePogo | Connector_PinSocket_2.00mm:PinSocket_1x01_P2.00mm_Vertical | TP2, TP4 |
| 2 | MalePogo | Connector_PinHeader_2.00mm:PinHeader_1x01_P2.00mm_Vertical | TP1, TP3 |
| 1 | 1.5p | Capacitor_SMD:C_0603_1608Metric | C14 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 10n | Capacitor_SMD:C_0603_1608Metric | C9 |
| 1 | 150 | Resistor_SMD:R_0603_1608Metric | R14 |
| 1 | 16MHz | Crystal:Crystal_SMD_Abracon_ABM7-2Pin_6.0x3.5mm | X1 |
| 1 | 1p | Capacitor_SMD:C_0603_1608Metric | C15 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric | C22 |
| 1 | 2.2n | Capacitor_SMD:C_0603_1608Metric | C16 |
| 1 | 2.7n | Inductor_SMD:L_0603_1608Metric | L1 |
| 1 | 22k | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 2450AT18A0100001E | 2450AT18A0100001E:XCVR_2450AT18A0100001E | E1 |
| 1 | 3.9n | Inductor_SMD:L_0603_1608Metric | L2 |
| 1 | 33n | Capacitor_SMD:C_0603_1608Metric | C11 |
| 1 | 4.7p | Capacitor_SMD:C_0603_1608Metric | C17 |
| 1 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C20 |
| 1 | 75k | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | 8.2n | Inductor_SMD:L_0603_1608Metric | L3 |
| 1 | Conn_01x02 | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J2 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_1.00mm:PinHeader_1x04_P1.00mm_Vertical | J7 |
| 1 | Green | LED_SMD:LED_0201_0603Metric | D1 |
| 1 | LSM6DS3 | Package_LGA:LGA-14_3x2.5mm_P0.5mm_LayoutBorder3x4y | U2 |
| 1 | MCP73831-2-MC | Package_DFN_QFN:DFN-8-1EP_3x2mm_P0.5mm_EP1.7x1.4mm | U7 |
| 1 | Red | LED_SMD:LED_0201_0603Metric | D4 |
| 1 | STM32F103C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | Si2371EDS | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | USB_C_Receptacle_PowerOnly_6P | Connector_USB:USB_C_Plug_ShenzhenJingTuoJin_918-118A2021Y40002_Vertical | J1 |
| 1 | XC6220B331MR | Package_TO_SOT_SMD:SOT-23-5 | U8 |
| 1 | nRF24L01P | Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | U3 |
It measures 34.8 × 14.8 mm and has 2 copper layers, 1.6 mm thick.
68 parts, built around the NRF24L01P-R, DRV8837CDSG, LSM6DS3 and XC6220B331MR. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the Rishabh416/microbot repository on GitHub, at the commit this page was made from: the board is microbot PCB V2/MicroBot.kicad_pcb and its schematic microbot PCB V2/MicroBot.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask Rishabh416 before reusing the design.

Rishabh416/microbot
My first fully custom project inspired by the microbots from the movie Big Hero 6. My goal is to get into swarm robotics and I believe this is a HUGE leap in that direction, but a good moment to learn.


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